Did you know choosing the train over your car can cut your carbon footprint by up to two thirds?

So, one family outing at a time, one little adventurer at a time, one trip to the museum, one dinner in the city, one nap on the way home at a time.

One train journey at a time can help create a greener future.

So when will you take your next trip? Find out more at nationalrail.co.uk slash greener.

This episode contains references to suicide. Please use discretion.

Start from the top. You just saw somebody talking to you.

Oh, I saw someone clap. So I say, are you okay?

They don't respond. So you're going to call for help because you need help coming towards you.

And I would just tell them, don't worry, I'm calling for help. I'm not the only thing that's going to help you.

Maybe that would keep them alive.

Okay, and then...

Then we're going to go to rate of about 100 to 120 per minute. The tune is staying alive. It's real familiar.

But go ahead and let's start mashing up and down on the chest.

Keep going a little faster, a little faster, not too fast.

Ah, ah, ah, ah, staying alive, staying alive.

Doing great CPR. Is it required more force than you help?

Well, you know the thing about it is that you actually... it's a lot of work.

Tracy Stell teaches life support in CPR. He's a nurse at Duke Hospital, where they train around 1200 people a month.

So we teach adult CPR, infant CPR, child CPR, and ADUs in our basic life support class.

And we are surrounded by a lot of dummies.

Yeah.

There's even mannequins in hospital beds. I mean, and there's little babies.

...